Dj. Korf et al., ESTIMATING THE NUMBER OF HEROIN USERS - A REVIEW OF METHODS AND EMPIRICAL-FINDINGS FROM THE NETHERLANDS, International journal of the addictions, 29(11), 1994, pp. 1393-1417
This article reviews major methods applied to estimate the number of h
eroin users in a community, predominantly urban areas. The main focus
is on applicability of methods to the available data. Methodologies ar
e evaluated with regard to reliability, validity, and feasibility from
the perspective of empirical findings, in particular in the Netherlan
ds. Findings from Amsterdam and Rotterdam are presented in more detail
in order to discuss major criteria for application of the capture/rec
apture and the nomination techniques.